[time-nuts] HP 5061Cs reference question

Tom Van Baak tvb at LeapSecond.com
Sat Dec 6 12:04:06 EST 2014


There are 7 peaks total, about 40 kHz apart (on my 5061A). If you're talking about just the central peak, there are two smaller peaks on either side, about 1 kHz apart. The exact value depends on internal magnetic field, which is specific to each beam tube design.

For some measurements of all the peaks, have a look at:

You can play with the C-field in addition to playing with peaks:
http://leapsecond.com/images/cfield.gif  (578 x 4610 pixels)

For more details search the archives for the word Zeeman. For example:

A nice description from hp how a cesium beam standard works:


----- Original Message ----- 
From: "paul swed" <paulswedb at gmail.com>
To: "Time-nuts" <time-nuts at febo.com>
Sent: Saturday, December 06, 2014 6:11 AM
Subject: [time-nuts] HP 5061Cs reference question

>I have a curious question that really applies to all Cs references.
> Its possible to set them on to the wrong peak.
> Typically in the literature it will speak to at least 3 peaks and you want
> to select the highest central peak.
> However if you select the wrong peak, how much would the output frequency
> be off?
> I had read a tech note for the airforce that seems to indicate its pretty
> easy to get on to the wrong peak.
> Regards
> Paul
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